docs: def _handle_dump(self, handler, file_object, **kwargs):
      """ Dump caller, used by partial method for dynamic handler assignments.
  
      :param object handler: The dump handler
      :param file file_object: The file object to dump to
      :return: The dumped string
      :rtype: str
      """
  
      return handler.dump(self.__class__, to_dict(self), file_object, **kwargs)